TEA1110A NXP Semiconductors, TEA1110A Datasheet - Page 7

• Manufacturer Part Number: TEA1110A
• Manufacturer: NXP Semiconductors

Specifications of TEA1110A

• Operating Supply Voltage (typ): 2.9V
• Max Transmitter Gain: 44.7dB
• Receiver Gain (max): 34dB
• Operating Temp Range: -25C to 75C
• Package Type: PDIP
• Pin Count: 14
• Operating Current: 1.1mA
• Operating Temperature Classification: Commercial
• Mounting: Through Hole
• Lead Free Status / Rohs Status: Compliant

Philips Semiconductors
This resistor enables the I
increased (the ratio between I
by the resistor). The AGC function is disabled when
pin AGC is left open-circuit.
Mute function (pin MUTE)
The mute function performs the switching between the
speech mode and the dialling mode. When MUTE is LOW,
the DTMF input is enabled and the microphone and
receiving amplifiers inputs are disabled. When MUTE is
HIGH, the microphone and receiving amplifiers inputs are
enabled while the DTMF input is disabled. A pull-up
resistor is included at the input.
DTMF amplifier (pin DTMF)
When the DTMF amplifier is enabled, dialling tones may
be sent on line. These tones can be heard in the earpiece
at a low level (confidence tone).
The TEA1110A has an asymmetrical DTMF input. The
input impedance between DTMF and V
voltage gain from pin DTMF to pin LN is 25.3 dB.
The automatic gain control has no effect on the DTMF
amplifier.
2000 Feb 15
handbook, halfpage
Low voltage versatile telephone
transmission circuit with dialler interface
Fig.6 V
V CCO
R CCint
CC
V CC
supply voltage for peripherals.
V EE
I rec
start
and I
start
PERIPHERAL
and I
CIRCUIT
stop
line currents to be
stop
EE
is 20 k . The
is not affected
MBE792
I P
7
handbook, halfpage
handbook, halfpage
(1) With R
(2) Without R
L
R
R
Fig.7
(mA)
eq
P
P
I P
2.5
1.5
0.5
Fig.5 Typical current I
= internal resistance.
= 15.5 k .
= C
2
1
0
0
REG
Equivalent impedance between LN and
V
VA
peripheral circuits at I
EE
V EE
R
resistor.
VA
LN
SLPE
.
SLPE
resistor.
1
R
P
L EQ
R SLPE
20
.
V ref
2
P
(2)
available from V
REG
R P
C REG
4.7 F
line
= 15 mA.
Product specification
3
V CC
(1)
R CC
100 F
619
C VCC
TEA1110A
MBE788
V CC (V)
MBE783
CC
4
for